Grain-crusher.



3 Sheets-Sheet I.

(No Model.)

Patented Apr. Il, |902.

H. & G. Boss'. GRAIN CRUSHER.

(Application led Dec. 6, 1900.)

3 Sheets-Sheet 2.

(No Model.)

TH: Nnms vzrsws co. mmuumo. WASHINGTON, D. c.

No. 696,755. Patented Apr. l, |902.

' H. & G. ROSE.

GRAIN CRUSHER.

(Application led Dac. 6, 1900.)

3 Sheets-Sheet 3.

(No Model.)

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UNITED STATES PATENT OEEICE'.

HENRI ROSE AND GEORGES ROSE, OF POISSY, FRANCE.

SPECIFICATION forming part of Letters Patent No. 696,755, dated April 1,1902.

Application filed December 6,1900. Serial No. 38,887. (No model.)

To all whom, it pta/y concern:

Be it known that we, HENRI ROSE and GEORGES ROSE, citizens of the FrenchRepublic, and residents of Poissy, Seine-etOise, France, have jointlyinvented certain new and useful Improvements in Grain-Crushers, of whichthe following is a specification.

This invention relates to the general class of machines or apparatusemployed for crushing wheat or other grain with the view of separatingtherefrom the kernel or nutritive nucleus; and the main object of theinvention is to provide such a machine which will effect the separationWithout compression or friction and which will reduce the kernels togranules of variable sizes, according to the degree of ineness it isdesired to attain in the milling, the detaching of the nucleus beingeffected with the cracking or breaking up of the grain into the minimumnumber of particles.

In the'drawings which serve to illustrate an embodiment of ourinvention, Figure 1 is as to the half at the left a side elevation andas to the half at the right a vertical section taken at'line fr in Fig.3. Fig. 2 is a front elevation 0f the drum of the machine detached. Fig.3 is a front elevation of the machine. Fig. 4 is a similar view to Fig.1, illustrating a slightly-diiferent construction of the drum.

The Crusher, which forms the object of this invention, comprises ingeneral an inclosing casing, which is circular interiorly and fixed inposition, a drum rotatively mounted in said casing having on itsperiphery ribs spaced equidistantly and parallel, and a series ofmovable ribs or bars mounted in the casing on rock-shafts or on rockingbearings and directed inward or toward the drum, the inner edges of saidrocking bars being quite near the circular path traversed by the ribs onthe drum. The rock-shafts which carry said rocking bars are spacedequidistantly, are parallel with the drum-axis, and have bearings in theends or heads of the casing through which they extend, means beingprovided for rocking them either altogether or in series. Thisconstruction permits of varying the inclination of the rocking bars atany time from their radial position with respect Fig. 2.) tire peripheryof the drum, and preferably' to the drum, so as to obtain the propervariaj tion in the crushing operation made necessary by the nature ofthe grain treated, its hygrometric condition, (Sac.

Referring to the drawings, the construction will now be moreparticularly described.

The outer fixed casing of the machine comprises a base 1, in which isformed a semicylindrical chamber of the proper dimensions to receive thedrum 2, which is Xed on a shaft 3, having bearings 4 in the casing. Theupper part of the casing is formed of a removable cover 5, which fitsover and incloses the drum. This cover has securing-flanges 6, wherebyit is secured to corresponding flanges 7 on the base 1. The drum 2 hason its periphery equidistant ribs 8, and these may be divided bycircumferential ribs 9. (Seen in The ribs 8 are applied about the entheywill be cast integrally with the drum. The outer easing and drum may beof castiron.

About the inner surface of the cover 5 are arranged rock-shafts 10,which have bearings in the ends of said cover. These shafts are spacedequidistantly and are parallel with the drum-axis, and each is providedwith or carries a bar 11, the preferred form of which.

when seen in cross-section is illustrated in Fig. 1. The shafts projectthrough the ends of the cover 5, and on their outer ends are securedarms 12. These arms are coupled together in groups by links 13. One ofsaid arms 12a of each group is prolonged and eX- tends over a slottedguide 14 and has a clamping-screw 15, whereby it may be secured to theguide when set, and thus hold the shafts ofthe group firmly againstmovement. Thus the bars 11 of any group may be set and held at anydesired angle with the radii of the drum 2. Preferably the alternatinggroups of shafts will have the means for setting them at the same end ofthe drum, as clearly indicated by the full and dotted lines in Fig. 1.This figure also shows the extent to which the bars 11 extend about theinterior of the cover 5. They are only provided in the cover and occupyonly a part of the inner wall or surface of the latter. The drum 2rotates in the direction of the arrow a, (seen in Fig. 1,) and IOO itmaybe, of course, driven from any source of power.

p on drums of considerable length.

y The grain is admitted to the machine at a hopper 16, and the supply isregulated by a distributer, from Which it passes by a chute 17 to theinterior of the casing. This distributer 18 is of a known kind and willbe sufiiciently understood from the illustration. The roller 19 of thisdistributer is driven from the drum-shaft 3 by a belt 20, Fig. 3, and

suitable pulleys and toothed gears.

The grain is carried about by the drum and discharged at the outlet 21,and the air, charged with the dust and lighter particles from the grain,escapes at the outlet 22.

The machine as seen in Figs. 1, 2, and 3 illustrates it in the form Weprefer to employ; but We do not wish to limit ourselves to this preciseconstruction, as we are well aware that it may be varied in somerespects Without departing materially from our invention. For example,the drum may be constructed as illustrated. in Fig. 4, wherein the Xedribs 8 are substituted by pivoted or adjustable ribs 8, which may be setat an angle to the drum radii before the drum is set in motion. Thisfigure also shows the dust-outlet 22 situated somewhat dilferently fromthe disposition of this' outlet seen in Fig. 1.

The circumferential ribs 9 on the drum are not essential and would onlybe employed Their functton is to facilitate the more equal distributionof the grain throughout the length of the drum.

The shafts 10 may, if desired, be included all in one group, so thatallthe bars 11 could be set simultaneously.

We do not claim all the features of the crushing-machine illustrated, assome of them are now Well known. Our invention resides mainly in'theconcentrically-arranged and angularly-adjustable ribs or bars 11 inconnection With the drum 2, having either fixed or adjustable ribs onits periphery.

The purpose of the adj ustability of the bars 11 is to provide forvarying the space between the inner edges of said bars and the externaledges 0f the ribs on the drum. This adjustment is an important featurein perfecting the Work of the machine.

One characteristic of our machine, as distinguished from some others,lies in the feedinlet being extended the entire length of the incloseddrum and in such a position that the grain falls directly on the drumand not between widely-separated bars in the casing. The bars 11 areplaced closely together side by side and form practically acontinuousfluted surface. The entire set of bars are in advance of thegrain-inlet.

Having thus described our invention, what We claim is-/ 1. In agrain-crushing machine, the outer,

cylindrical casing, the movable bars in the said casing, said bars beingplaced close together and mounted to rock on journals, the drumrotatively mounted in the casing and having ribs on its periphery whichrotate in close proximity to the movable bars in the casing, and meansfor separately adjusting` and setting groups ot' the said bars, the saidcasing having an inlet for grain extending substantially the entirelength of the inclosing drum and opening directly to the periphery ofthe latter, and the series of bars in the casing being Wholly in advanceof the grain-inlet, substantially as set forth.

2. In a grain-crushing machine, the combination With the outer casing,and the ribbed drum rotatively mounted therein, of theconcentrically-disposed and parallel rock-shafts 10, mounted in the endsof the upper part of the casing, the arms 12 on the projecting ends ofsaid rock-shafts, the links coupling said arms together in groups, meansfor operating and securing the coupled group of arms, and the bars 11placed close together on the respective rock-shafts, substantially asset forth.

In witness whereof we have hereunto signed our names, this 21st day ofNovember, 1900, in the presence of two subscribing Witnesses.

HENRI ROSE. GEORGES ROSE. Vitnesses:

ALBERT MAULsAULT, J. ALLIsoN BOWEN.

